Claims
- 1. A lock assembly, comprising:a barometric lock cylinder for actuating a latch assembly wherein the barometric lock cylinder comprises: a lock body having an axial rotor hole and a plurality of marble sockets radially distributed on an inner surface of said lock body; a plurality of hidden marbles being coaxially placed in said marble sockets respectively; a tubular compound lock core being rotatably and coaxially fitted in said axial rotor hole of said lock body to define a keyway therethrough, said lock core having a plurality of locking holes radially distributed on an outer circumferential surface of said lock core and a plurality of air channels radially distributed on an inner circumferential surface of said lock core for communicating with said locking holes respectively, wherein each of said locking holes is capable of coaxially aligning with said marble sockets respectively; and a plurality of resilient elements being coaxially disposed in said marble sockets respectively for applying urging pressures on said hidden marbles to move inwardly towards said locking holes until an inner portion of each of said hidden marbles is disposed in said respective locking hole and an outer portion of said hidden marble is disposed in said respective marble socket so as to lock up said rotatable movement between said lock core and said lock body; and a barometric key comprising: a key handle having a compressible air bag provided therein; and a key body having a rod liked shape comprising an air conduit longitudinally extended from said air bag and a plurality of airways, which are radially extended outwardly from said air conduit respectively, provided around said key body corresponding to said axial and radial positions of said air channels in said barometric lock cylinder respectively, such that when said barometric key is inserted into said keyway, a predetermined air pressure applied from said key handle is adapted to drive said marbles to move outwardly into said marble sockets correspondingly, so as to unlock the barometric lock cylinder to enable said lock core to freely rotate to control said locking and unlocking of said latch assembly.
- 2. The lock assembly, as recited in claim 1, wherein each of said barometric key having a triangular cross section has three engaging surfaces for fittedly inserting into said corresponding shape of said keyway having a triangular cross section wherein said airways are selectively aligned on each engaging surface of said key body in such a axial and radial positions so as to control said marbles in said barometric lock cylinder in three radial directions.
- 3. The lock assembly, as recited in claim 1, wherein each of said air channels is bent and extended from said inner circumferential surface of said lock core to said respective locking hole for security purpose.
- 4. The lock assembly, as recited in claim 2, wherein each of said air channels is bent and extended from said inner circumferential surface of said lock core to said respective locking hole for security purpose.
- 5. The lock assembly, as recited in claim 2, further comprising a lock head comprising a lock face having a key hole aligning with said keyway, a lock frame rearwardly extended on said lock face, a spring housing extended from said lock frame, a key hole block hanging door foldably mounted on said lock frame for closing and opening said key hole, and a restoring leaf spring received in said spring housing for applying an urging pressure on said hanging door.
- 6. The lock assembly, as recited in claim 4, further comprising a lock head comprising a lock face having a key hole aligning with said keyway, a lock frame rearwardly extended on said lock face, a spring housing extended from said lock frame, a key hole block hanging door foldably mounted on said lock frame for closing and opening said key hole, and a restoring leaf spring received in said spring housing for applying an urging pressure on said hanging door.
- 7. The lock assembly, as recited in claim 5, wherein said lock face further comprises an elevator wheel rotatably mounted on said lock face, a fender controlled by said elevator wheel for blocking up said hanging door on said key hole, and a fender sliding track for guiding the rotation movement of said fender.
- 8. The lock assembly, as recited in claim 6, wherein said lock face further comprises an elevator wheel rotatably mounted on said lock face, a fender controlled by said elevator wheel for blocking up said hanging door on said key hole, and a fender sliding track for guiding the rotation movement of said fender.
- 9. The lock assembly, as recited in claim 7, further comprising a set of cipher wheels having a preset cipher provided on a front surface of said lock face wherein said cipher wheels are communicating with said elevator wheel in such a manner that when said cipher wheels are selectively rotated to match said preset cipher, said fender is slidably moved along said fender sliding track, so as to unblock said hanging door.
- 10. The lock assembly, as recited in claim 8, further comprising a set of cipher wheels having a preset cipher provided on a front surface of said lock face wherein said cipher wheels are communicating with said elevator wheel in such a manner that when said cipher wheels are selectively rotated to match said preset cipher, said fender is slidably moved along said fender sliding track, so as to unblock said hanging door.
- 11. The lock assembly, as recited in claim 9, further comprising a protruding part outwardly protruded from said key handle of said barometric key wherein said protruding part is arranged to engage with said cipher wheels in order to rotate said cipher wheels.
- 12. The lock assembly, as recited in claim 10, further comprising a protruding part outwardly protruded from said key handle of said barometric key wherein said protruding part is arranged to engage with said cipher wheels in order to rotate said cipher wheels.
CROSS REFERENCE OF RELATED APPLICATION
This is a regular application of a provisional application having an application No. of 60/229,259, filed on Aug. 30, 2000.
US Referenced Citations (21)
Provisional Applications (1)
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Number |
Date |
Country |
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60/229259 |
Aug 2000 |
US |